Pith Number

pith:AXMVV2W3

pith:2015:AXMVV2W3OH3QRO7WCVX5U3JRUZ

not attested not anchored not stored refs pending

A Tutorial Introduction to the Lambda Calculus

Raul Rojas

arxiv:1503.09060 v1 · 2015-03-28 · cs.LO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AXMVV2W3OH3QRO7WCVX5U3JRUZ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:19:51.486804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05d95aeadb71f708bbf6156fda6d31a643bf6639f244debe718a86051957b20e

Aliases

arxiv: 1503.09060 · arxiv_version: 1503.09060v1 · doi: 10.48550/arxiv.1503.09060 · pith_short_12: AXMVV2W3OH3Q · pith_short_16: AXMVV2W3OH3QRO7W · pith_short_8: AXMVV2W3

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/AXMVV2W3OH3QRO7WCVX5U3JRUZ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 05d95aeadb71f708bbf6156fda6d31a643bf6639f244debe718a86051957b20e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0415abcfc32713b19297fc9cca4064929d98d1096957544e5ecb9fbaacecd6f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-03-28T00:38:33Z",
    "title_canon_sha256": "b484d959215d9c056b84f4091cc93c96e77b5b3aa036deeddfc1c2c5b468defe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.09060",
    "kind": "arxiv",
    "version": 1
  }
}